CN219949262U - Oil leakage detection device for underground oil tank of petrochemical device - Google Patents
Oil leakage detection device for underground oil tank of petrochemical device Download PDFInfo
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- CN219949262U CN219949262U CN202222569548.0U CN202222569548U CN219949262U CN 219949262 U CN219949262 U CN 219949262U CN 202222569548 U CN202222569548 U CN 202222569548U CN 219949262 U CN219949262 U CN 219949262U
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- 238000001514 detection method Methods 0.000 title claims abstract description 53
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Abstract
The utility model discloses an oil leakage detection device of a subsurface oil tank pool of a petroleum and petrochemical device, which comprises an oil leakage detector lifting cable with a lead, an oil leakage detector and an oil leakage alarm buzzer; oil leak alarm pilot lamp and safe power supply work pilot lamp, its characterized in that: the safety power supply work indicator lamp, the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are integrated together to form an indication alarm panel, two wires are contained in the oil leakage detector lifting cable, one end of the oil leakage detector lifting cable is an oil leakage detector connector and used for connecting an oil leakage detector, the other end of the oil leakage detector lifting cable is connected with an alarm cable connector, and the oil leakage alarm buzzer and the oil leakage alarm indicator lamp circuit are connected. By adopting the utility model, the oil leakage of the underground oil tank pool of the petrochemical device can be effectively monitored timely, and the safety and environmental protection performance of the underground oil tank pool of the petrochemical device in production operation can be improved. Meanwhile, the device is safe and convenient, good in maintainability, low in use cost and good in economy.
Description
Technical Field
The utility model belongs to the technical field of petrochemical industry environmental protection, and particularly relates to an oil leakage detection device for an underground oil tank of a petrochemical device.
Background
Because of the production process requirements, the petrochemical device needs to arrange underground oil tanks such as a low-level oil tank, a sewage oil tank, a waste solvent tank, an alkaline residue tank and the like underground in a device area. In order to prevent leakage of oil products generated by corrosion and the like from these underground oil tanks to pollute soil and groundwater, these oil tanks are generally required to be disposed in a reinforced concrete underground oil tank pool. Once the oil leaks, the oil can be temporarily collected in an underground oil tank pool, and is manually cleaned after discovery, so that the oil is prevented from entering surrounding soil and underground water.
According to the technical Specification for seepage control of petrochemical engineering GB/T50934-2013, the bottom plate and the wall plate of an underground oil tank pool provided with a dirty oil tank, a waste solvent tank, an alkaline residue tank and the like are required to be subjected to key seepage control, and the seepage control performance of a seepage control layer is not lower than 6.Om thick permeability coefficient of 1.0x10 -7 Barrier properties of the clay layer in cm/s. According to the specification, the reason that these parts are required to be subjected to important seepage prevention is that the leakage is difficult to find and treat due to underground, and the underground water is polluted due to untimely treatment. And for the ponds for storing oily sewage in rainwater monitoring ponds, accident ponds and the like in petrochemical plants, the general seepage prevention measures can be adopted because the sewage is considered to have shorter residence time in the ponds and is easy to treat in time.
The underground tank pool of petrochemical plants is filled with neutral sand or fine earth due to considerations of reducing the possibility of accumulation of combustible gases. After filling neutral sand or fine soil, the difficulty of timely finding oil leakage in the underground oil tank pool of the petrochemical device is further increased. Although the underground oil tank pool adopts the seepage prevention of the bottom plate and the wall plate, the function of setting leakage detection on the underground oil tank is still needed to be considered in order to eliminate accident hidden trouble and improve the safety and environmental protection performance of production.
The oil tank leakage detection technology which can be used as a reference at present comprises manual scale measurement, a volume/quality measurement system, a double-layer tank blowing detection technology, a soil resistance change detection technology, a technology for monitoring oil gas concentration by drilling holes in a storage tank foundation, an oil leakage induction cable technology and the like. Wherein the manual gauge measurement, volume/mass measurement system is only suitable for tank systems and not for small leaks; the double-layer tank blowing detection technology is only applicable to double-layer oil tanks; the soil resistance change detection technology needs to embed special metal probes in soil under an oil storage tank or a pipeline, and leakage detection is carried out by measuring the voltage between the probes, so that the technology is suitable for leakage detection in a larger area; the technology for monitoring the oil gas concentration by drilling holes in the storage tank foundation needs to detect oil gas by periodically utilizing a high-sensitivity photoionization oil gas content detector, is suitable for detecting gas in a detection hole near the surface of the earth, and is not suitable for detecting a region with large burial depth; the oil leakage induction cable technology needs to lay an oil leakage induction cable on a tank foundation before tank construction, and after the oil leakage induction cable finds leakage, signals are sent to a controller and are processed by a microprocessor to be displayed in an alarm mode. The oil leakage induction cable is high in price, disposable, high in laying technical requirement and high in cost.
Disclosure of Invention
The utility model aims to provide an oil leakage detection device for an underground oil tank of a petrochemical device. The detection device can improve alarm reliability and system maintainability, is simple in system installation and maintenance, is convenient to use, and can effectively solve the problem of oil leakage detection of the underground oil tank of the petrochemical device.
In order to solve the problems, the utility model adopts the following technical scheme:
an oil leakage detection device for an underground oil tank of a petrochemical device comprises an oil leakage detector lifting cable with a lead, an oil leakage detector and an oil leakage alarm buzzer; oil leak alarm pilot lamp and safe power supply work pilot lamp, its characterized in that: the safety power supply work indicator lamp, the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are integrated together to form an indication alarm panel, two wires are contained in the oil leakage detector lifting cable, one end of the oil leakage detector lifting cable is an oil leakage detector connector and used for connecting an oil leakage detector, the other end of the oil leakage detector lifting cable is connected with an alarm cable connector, and the oil leakage alarm buzzer and the oil leakage alarm indicator lamp circuit are connected.
The oil leakage detection device is further characterized in that: the length of the lifting rope of the oil leak detector needs to be customized according to the distance between the oil leak detection position and the operation of the lifting rope of the oil leak detector.
The oil leakage detection device is further characterized in that: the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are in a parallel state in the circuit, and any one of sound and light alarms is a prompting device for detecting oil leakage and needs to be checked and confirmed.
The oil leakage detection device is further characterized in that: the oil leak detector lifting cable is internally provided with two wires, so that the lifting and placing functions of the oil leak detector can be executed, and meanwhile, the electric signal transmission can be carried out. One end of the lifting cable of the oil leakage detector is provided with an oil leakage detector joint which is used for being connected with the oil leakage detector and receiving an electric signal generated after the oil leakage detector detects oil leakage. The connection mode adopts wire connection or buckling connection, so that the connection reliability and the detachability are ensured. The oil leakage detector joint is composed of an insulating filler in the oil leakage detector joint and an electrode contact in the oil leakage detector joint. After connection, the electrode contact of the lead in the connector is contacted with the electrode contact in the oil leakage detector, and the two electrodes in the oil leakage detector are respectively communicated with the two leads in the lifting cable of the oil leakage detector.
The oil leakage detection device is further characterized in that: the oil leakage detector consists of oil absorption expansion rubber and an elastic electrode plate, and triggers an audible and visual alarm device to alarm oil leakage after oil leakage is absorbed. The oil leakage detection element is a replaceable element, and the component is invalid after the oil leakage is detected and needs to be replaced. Besides the electronic alarm mode, the method also supports visual inspection and oil content analysis detection verification,
the utility model is further characterized in that: the power supply work indicator lamp, the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are integrated together to form an indication alarm panel. After the device is normally put into use, under the condition of no oil leakage, the power supply working indicator lamp is in a lighting state, and the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are powered off and do not work. After the oil leakage detector detects oil leakage, the oil leakage alarm buzzer and the oil leakage alarm indicator lamp circuit are connected, and the device performs audible and visual alarm.
The utility model is further characterized in that: after the device is put into use, if the oil leakage alarm buzzer and the oil leakage alarm indicator lamp do not work, and when the power supply work indicator lamp is in a extinguishing state, the power supply state of the device power supply needs to be checked, so that the normal power supply of the device is ensured.
The utility model is further characterized in that: after the oil leakage occurs at the detection position, the oil leakage contacts the oil absorption expansion rubber through an oil inlet hole on the rigid shell of the oil leakage detector, and after the oil leakage contacts, the oil absorption expansion rubber expands in volume, and the two elastic electrode plates in a separated state are extruded to be in contact and communication with each other. The current is communicated with the audible and visual alarm unit through the lead in the lifting cable to generate audible and visual alarm signals.
The utility model is further characterized in that: the circuit testing contacts are arranged at the lower ends of the two electrodes at the lower end of the oil leakage detector, after the oil leakage detector is connected with the lifting cable of the oil leakage detector through a connector, the circuit testing contacts at the lower ends of the two electrodes at the lower end of the oil leakage detector are temporarily communicated before the system is put into a detection position for use, and the integrity of circuit connection of the system is tested. And after the test is qualified, placing the oil leakage detector at a detection position through a lifting cable.
The utility model is further characterized in that: after any one of sound and light alarm occurs, the oil leakage detector at the detection position is taken out through the oil leakage detector lifting cable with the lead, the oil absorption condition of the expansion rubber is checked, the alarm is confirmed, follow-up measures are avoided due to false alarm, and the use reliability of the device is ensured. Meanwhile, the oil leakage detector which is invalid due to oil leakage absorption is replaced and then put into use again, so that maintainability and economy of the system are provided.
The device has the beneficial effects that: the oil leakage of the petrochemical device underground oil tank pool can be effectively monitored timely, and the safety and environmental protection performance of the petrochemical device underground oil tank pool in production operation can be improved. Timely detecting oil leakage of an underground oil tank of the petrochemical device is facilitated, oil loss is reduced, leaked oil is reduced from penetrating into surrounding soil and underground water environment, and environmental pollution is caused; and the oil leakage source is early, so that secondary accidents such as fire explosion and the like possibly caused by oil leakage are reduced. Meanwhile, the device is safe and convenient, good in maintainability, low in use cost and good in economy.
Drawings
FIG. 1 is a schematic diagram of an oil leak detection apparatus for an underground tank of a petrochemical plant;
FIG. 2 is a side view of an installation of an oil leak detection apparatus for a petrochemical plant underground oil tank in an underground oil tank pool;
FIG. 3 is a schematic view of an oil leak detector according to the present utility model;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is a sectional view of fig. 3B-B.
The reference numerals shown in the figures are: A-24V safety power supply; b-a power supply work indicator lamp; c-an oil leakage detector; d-an oil leakage alarm buzzer; e-oil leakage alarm indicator lamp; 1-the side wall of an underground oil tank pool; 2-an underground oil tank pool top plate; 3-filling sand into the underground oil tank; 4-an underground oil tank; 5-an underground oil tank supporting foundation; 6-an underground oil tank bottom plate; 7-filling a crushed stone oil collecting pit; 8-detecting well; 9, detecting oil penetration holes in the well wall; 10-an oil leakage detector; 11-an oil leakage detector lifting rope containing a wire; 12-the lifting rope of the oil leak detector is connected with an alarm cable joint; 13-alarm cable connector; 14-an indication alarm panel; 15-a power supply cable; a 16-24V safety power supply; 22-metal wires; 23-oil leak detector joint; 24-insulating filler in the oil leakage detector joint; 25-electrode contacts in the oil leakage detector joint; 26-rigid housing of oil leak detector; 27-insulating filler at the upper end of the oil leakage detector; 28-electrode contacts at the upper end of the oil leakage detector; 29-insulating filler between elastic electrode plates at the upper part of the oil leakage detector; 30-oil absorbing swelling rubber; 31-elastic electrode sheet; 32-gaps between elastic electrode sheets; 33-insulating filler at the lower end of the oil leakage detector; 34-oil leak detector lower end circuit test contacts; 35-insulating filler between elastic electrode plates at the lower part of the oil leakage detector; 36-oil inlet holes on the rigid shell of the oil leakage detector; and 37-insulating fillers at two sides of the elastic electrode plate in the oil leakage detector.
Detailed Description
The following detailed description of the embodiments of the present utility model is provided with reference to fig. 1-5, which are not intended to limit the scope of the utility model.
24V safety power supply-a as shown in fig. 1; a power supply work indicator lamp-B; an oil leakage sensor-C; an oil leakage alarm buzzer D; oil leakage alarm indicator lamp-E; wherein, power work pilot lamp B, oil leak alarm buzzer D, oil leak alarm pilot lamp E integrate into the instruction alarm panel.
As shown in fig. 2, the underground tank pool comprises an underground tank pool side wall 1; a top plate 2 of the underground oil tank pool; filling sand 3 in the underground oil tank; an underground oil tank 4; an underground oil tank supporting foundation 5; a bottom plate 6 of the underground oil tank; the underground oil tank pool of the petrochemical device is provided with a water collecting pit for construction and maintenance, and the water collecting pit can be used as an oil collecting pit 7 for oil leakage detection. A detection well 8 is provided in the sump for placement and extraction of the oil leak detector. The inner diameter of the detection well is +10cm of the outer diameter of the oil leakage detector, so that the oil leakage detector can be placed and extracted conveniently. The detection well is of a cylindrical structure, the oil penetration holes 9 on the detection well wall are formed in the well wall at the lower part of the detection well, and broken stones are filled in the periphery of the detection well, so that oil leakage collection and detection are facilitated. The oil leak detector 10 is pulled up by the oil leak detector lifting cable 11 containing wires; the lifting rope of the oil leak detector is connected with the alarm cable joint 12; the alarm cable connector 13 is connected with an indication alarm panel 14; the 24V safety power supply 16 is connected through a power supply cable 15.
The oil leak detector comprises an oil leak detector rigid housing 26, as shown in fig. 3, 4, 5; an insulating filler 27 at the upper end of the oil leak detector; an oil leak detector upper electrode contact 28; an insulating filler 29 between the elastic electrode plates at the upper part of the oil leakage detector; an oil-absorbing swelling rubber 30; an elastic electrode sheet 31; an elastic electrode sheet gap 32; insulating filler 33 at the lower end of the oil leak detector; a drain detector lower end circuit test contact 34; insulating filler 35 between the elastic electrode plates at the lower part of the oil leakage detector; an oil inlet hole 36 on the rigid housing of the oil leak detector; the two sides of the elastic electrode plate in the oil leak detector are provided with insulating fillers 37 and the like.
The circuit testing contacts are arranged at the lower ends of the two electrodes at the lower end of the oil leakage detector, after the oil leakage detector 10 and the lifting cable 11 of the oil leakage detector are connected well through a joint, the two circuit testing contacts 34 at the lower ends of the two electrodes at the lower end of the oil leakage detector 10 are temporarily communicated before the system is put into use at a detection position, and the integrity of circuit connection of the system is tested. And after the test is qualified, placing the oil leakage detector at a detection position through a lifting cable.
When detecting, the oil leak detector is placed at the bottom of the detection well. After oil leakage occurs in the underground oil tank pool, oil enters an oil collecting pit, then enters a detection well 8 through an oil penetrating hole 9 on the wall of the lower part of the detection well to be contacted with an oil leakage detector, oil absorption expansion rubber in the oil leakage detector expands, electrodes in the oil leakage detector are extruded to be contacted, and an alarm circuit is communicated to realize audible and visual alarm. After alarming, operators lift the oil leakage detector out of the detection well by utilizing the oil leakage detector lifting cable, detach the oil leakage detector, check the oil absorption condition of the oil absorption expansion rubber, and after confirming oil leakage, carry out the shutdown maintenance of the underground oil tank. And meanwhile, the failed oil leakage detector is replaced and is used for next detection.
When the underground oil tank is overhauled, the oil at the bottom of the oil collecting pit and the detection well is required to be cleaned. When the underground oil tank is put into operation again, the appearance connection condition of the lifting cable of the oil leakage detector and the oil leakage detector is visually checked, and the two circuit test contacts at the lower ends of the two electrodes at the lower end of the oil leakage detector are temporarily communicated by utilizing a lead, so that the integrity of circuit connection of a system is checked. And after the inspection is qualified, the oil leak detector is placed at the bottom of the inspection well again by utilizing the lifting cable of the oil leak detector, and the inspection of the next period is carried out.
The above description is illustrative of the utility model and is not to be construed as limiting the scope of the utility model. Variations and modifications to the disclosed examples may become apparent to those skilled in the art that do not necessarily depart from the scope and spirit of the utility model as defined by the appended claims.
Claims (6)
1. An oil leakage detection device for an underground oil tank of a petrochemical device comprises an oil leakage detector lifting cable with a lead, an oil leakage detector and an oil leakage alarm buzzer; oil leak alarm pilot lamp and safe power supply work pilot lamp, its characterized in that: the safety power supply work indicator lamp, the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are integrated together to form an indication alarm panel, two wires are contained in the oil leakage detector lifting cable, one end of the oil leakage detector lifting cable is an oil leakage detector connector and used for connecting an oil leakage detector, the other end of the oil leakage detector lifting cable is connected with an alarm cable connector, and the oil leakage alarm buzzer and the oil leakage alarm indicator lamp circuit are connected.
2. The oil leakage detection device according to claim 1, wherein: the length of the oil leak detector lifting rope is determined according to the distance between the oil leak detection position and the oil leak detector lifting rope operation.
3. The oil leakage detection device according to claim 1, wherein: the oil leakage alarm buzzer and the oil leakage alarm indicator lamp are connected in parallel in the circuit.
4. The oil leakage detection device according to claim 1, wherein: the two wires are contained in the oil leakage detector lifting cable, the connecting mode adopts wire connection or buckling connection, after the connection, the electrode contacts of the wires in the connector are contacted with the electrode contacts in the oil leakage detector, and the two electrodes in the oil leakage detector are respectively communicated with the two wires in the oil leakage detector lifting cable.
5. The oil leakage detection device according to claim 1, wherein: the oil leakage detector consists of oil absorption expansion rubber and elastic electrode plates.
6. The oil leakage detection device according to claim 1, wherein: the lower ends of two electrodes at the lower end of the oil leakage detector are provided with circuit test contacts, and the oil leakage detector is connected with an oil leakage detector lifting cable through a joint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222569548.0U CN219949262U (en) | 2022-09-28 | 2022-09-28 | Oil leakage detection device for underground oil tank of petrochemical device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222569548.0U CN219949262U (en) | 2022-09-28 | 2022-09-28 | Oil leakage detection device for underground oil tank of petrochemical device |
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| CN219949262U true CN219949262U (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222569548.0U Active CN219949262U (en) | 2022-09-28 | 2022-09-28 | Oil leakage detection device for underground oil tank of petrochemical device |
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| CN (1) | CN219949262U (en) |
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- 2022-09-28 CN CN202222569548.0U patent/CN219949262U/en active Active
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